Jack joined City last week after another standout season for boyhood club, Aston Villa.
And after a brief cameo in Saturday's Community Shield clash with Leicester, the England international was introduced to City supporters at the Etihad Stadium on Monday evening.
There was a surprise in store for our new signing though, as he was reunited with City legend Joleon Lescott, a former Aston Villa teammate.
The duo caught up in the Etihad changing room, speaking about life in Manchester, teammates and what the season ahead looks like.
Watch the video above to hear Jack and Joleon's conversation...